December Weather in Greystones, Ireland

Last updated: March 17, 2025

In Greystones, Ireland, December brings a chill characterized by maximum temperatures of 13°C (56°F) and an average of 8°C (46°F), dipping as low as 2°C (35°F). This month is marked by a significant precipitation total of 110 mm (4.3 in), spread over 16 days, making it one of the wetter months of the year. Coupled with an average humidity of 84%, residents and visitors alike should brace for a damp and crisp winter atmosphere. Whether you're strolling along the coast or enjoying the local amenities, December's weather in Greystones promises a quintessential Irish winter experience.

December Temperature in Greystones

In Greystones, Ireland, December ushers in the chill of winter, with temperatures slowly dipping as the year draws to a close. The month sees a low of around 2°C (35°F), with a cool average of 8°C (46°F) and a maximum reaching 13°C (56°F). Compared to previous months, December's temperatures reflect a subtle decline, following the patterns of November and October, but remain milder than the deeper winter months of January and February. Despite the drop in temperatures, December offers a crisp charm that brightens the festive season, making it a time for cozy gatherings and picturesque coastal strolls amidst the holiday spirit.

December Weather in Greystones: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Greystones, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444445475156595957534946
Data source: Temperature data for Greystones generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Greystones

As December approaches in Greystones, Ireland, the landscape is often blanketed by dipping temperatures and increased rainfall, culminating in an average precipitation of 110 mm (4.3 in) over 16 days. This marks a slight decrease from the previous month's total of 127 mm, yet still emphasizes the region's characteristic wetness during winter. The wet season peaks in late autumn, as reflected in November's higher figures, but December maintains a substantial volume of rainfall that contributes to the lush greenery that Ireland is famed for. It's a time when the coastal charm of Greystones glistens under the overcast skies, inviting cozy indoor gatherings while the world outside thrives on the invigorating embrace of the oceanic elements.

December Precipitation Trends in Greystones

The chart displays monthly precipitation patterns in Greystones, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec708687486175789682101127110
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Greystones

In December, Greystones experiences a humidity level of 84%, marking a slight decrease from the 86% seen in the previous months of November and October. This trend of higher humidity is characteristic of the late autumn months, with levels consistently hovering around the mid-80s throughout much of the year. Compared to the winter months of January through March—where humidity peaks at 86%—December offers a brief respite, suggesting a slight seasonal shift. The overall pattern indicates that while Greystones remains relatively humid year-round, December provides a subtle break as the year winds down, hinting at a drier transition into the colder months ahead.

December Average Humidity in Greystones

This chart illustrates the average monthly humidity levels in Greystones, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Greystones

As we delve into the December UV Index in Greystones, Ireland, this month continues the trend of lower UV exposure, showcasing an Index of 1, categorized as low. This means that you can safely enjoy outdoor activities with minimal risk of sunburn, as the estimated burn time is a comfortable 45 minutes. Following a summer with very high indices peaking at 8 in June and July, the UV levels steadily decrease through the autumn months, with November at 2. It's a reminder that while winter brings cooler temperatures, sun protection is still important on those brighter days. For more detailed insights on UV levels throughout the year, check out Greystones UV Index.

Maximum UV Index Levels in Greystones for December

The chart shows the monthly maximum UV Index (UVI) for Greystones in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Greystones December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Greystones

In Greystones, Ireland, the trend of sunshine hours throughout the year reveals a captivating cyclical pattern. As winter deepens, December sees a dip in sunlight with just 101 hours, a stark contrast to the 87 hours of January. However, this reduction is part of a broader pattern where daylight begins to extend with each passing month, peaking in May at an impressive 408 hours. Following the spring and summer months, sunshine gradually diminishes again in autumn, leading into December. Notably, this month represents a significant transition, bridging the past year's brighter days with the approaching winter, as the heart of the year glows brightly before receding into the early darkness. With each seasonal shift, Greystones invites both reflection and anticipation of the warmth ahead.

Monthly Sunshine Duration in Greystones: December Highlighted

The December sunshine duration represents the total number of hours Greystones experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec87h153h207h329h408h401h403h361h308h237h127h101h
Data source: Greystones December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Greystones During December

In Greystones, Ireland, the likelihood of sunshine in December stands at a modest 24%, slightly below the national average for the month and consistent with the post-autumn trend of diminishing sunlight. After the relatively brighter months of April and May, the chances of sunny weather decline, with December being only marginally sunnier than months like October and February. This trend reflects the typical transition into winter, where cloud cover often dominates the skies. While you can still catch the occasional ray of sunshine, it’s best to prepare for a mix of weather as the year winds down.

Percentage of Sunny Days in December in Greystones

The chart illustrates the percentage of sunny days in Greystones throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Greystones experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%23%25%49%35%27%34%27%23%21%27%24%
Data source: Greystones December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Greystones in December

In Greystones, Ireland, the ebb and flow of daylight is a captivating rhythm, with December marking the culmination of the year's diminishing sunlight. As the year progresses from the long days of June and July, where daylight stretches to an impressive 16 hours, the days gradually shorten, reaching a low of just 7 hours in December. This trend paints a clear picture of the seasonal shift, with the waning light instilling a coziness that reflects the holiday spirit. January and February see slight increases with 8 and 9 hours respectively, hinting at the gradual return of longer days. Yet, as nature prepares for winter's embrace, the dwindling daylight of December invites residents to cherish the warmth of indoor gatherings and festive cheer as they await the promise of spring's return.

Average Daylight Hours in Greystones for December

The chart illustrates the variation in daylight duration in Greystones throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 9m9h 50m11h 54m14h 1m15h 52m16h 50m16h 19m14h 39m12h 36m10h 31m8h 38m7h 37m
Data source: Greystones daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Greystones

In December, Greystones, Ireland, experiences a notable uptick in wind speed, averaging 6.8 m/s (15 mph), making it one of the year's breezier months. This increase comes after a generally steady pattern throughout the autumn, where average wind speeds hovered around 6.6 m/s in November and 6.7 m/s in October. The winter months clearly see a shift, with December's winds reflecting an energetic transition as the year draws to a close. Before this, the summer months like July and August exhibited the calmest conditions, showcasing a stark contrast to the brisk air that heralds the onset of winter. This fluctuation creates a dynamic environment, where the crisp December winds sweep across the coastline, enhancing the charm of Greystones during this festive time of year.

Average December Wind Speed in Greystones

The chart displays monthly wind speed patterns in Greystones, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.48.26.04.65.24.83.44.64.36.76.66.8 m/s
Data source: Greystones December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Greystones Compares to Other Months

The weather in Greystones changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Greystones and find detailed weather information for every month.

In comparing the weather of December and January, both months feature similar maximum temperatures, with January averaging around 13°C (56°F). December tends to be slightly warmer overall with an average temperature of 8°C (46°F), compared to January's 7°C (44°F). Precipitation levels are notably higher in December, with 110 mm (4.3 in) falling over 16 days, while January sees a decrease to 70 mm (2.7 in) across 11 days. Humidity remains relatively consistent, hovering around 84% in December and slightly increasing to 85% in January. For more detailed insights, you can check Greystones weather in January.

In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 13°C (56°F), with an average of 8°C (46°F). The month experiences higher precipitation with 110 mm (4.3 in) spread over 16 rainy days, and humidity levels sit at 84%. In contrast, February sees slightly cooler temperatures, with a minimum of 0°C (33°F) and an average of 7°C (45°F), maintaining the same maximum of 13°C (56°F). Precipitation decreases to 86 mm (3.4 in) over 15 days, while humidity rises to 86%. For a more detailed look at February weather, you can visit Greystones weather in February.

December and March exhibit distinct differences in weather patterns. December typically experiences milder temperatures, with averages around 8°C (46°F) and maximums reaching 13°C (56°F). However, it also sees higher precipitation levels, averaging 110 mm (4.3 in) over approximately 16 rainy days and an elevated humidity of 84%. In contrast, March tends to be cooler with minimum temperatures dropping to -3°C (28°F) and an average of 7°C (45°F). The month receives less precipitation, averaging 87 mm (3.4 in) across about 15 days and maintains similar humidity levels at 86%. For more detailed insights, see Greystones weather in March.

When comparing the weather in December and April, both months exhibit mild temperatures, with December experiencing a minimum of 2°C and an average of 8°C, while April shares the same minimum but offers a slightly higher average of 8°C and a maximum of 15°C. In terms of precipitation, December is considerably wetter, receiving 110 mm over 16 days, compared to April's 48 mm across 11 days. Both months also have similar humidity levels, hovering around 84% in December and slightly higher at 85% in April. For a more in-depth look at what to expect, you can check out Greystones weather in April.

When comparing December and May weather, December tends to be chillier, with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 13°C (56°F). The month also sees significant rainfall, with 110 mm (4.3 in) of precipitation spread over 16 days, resulting in a humidity level of 84%. In contrast, May brings milder conditions, with an average temperature between 3°C (38°F) and 17°C (63°F). The amount of rainfall decreases to 61 mm (2.4 in) over just 12 days, while humidity remains slightly lower at 83%. For a closer look at the weather in May, you can check Greystones weather in May.

December weather is characterized by cooler temperatures, with a minimum of 2°C (35°F) and an average of 8°C (46°F), while June enjoys milder conditions, with a minimum of 8°C (46°F) and an average of 13°C (56°F). The maximum temperatures in December reach 13°C (56°F), compared to June's higher maximum of 19°C (67°F). Additionally, December experiences more precipitation, with 110 mm (4.3 in) over 16 days, whereas June sees only 75 mm (2.9 in) across 13 days. Both months share high humidity levels, around 84% in December and 85% in June, making them both feel damp. For more details on June weather, check out Greystones weather in June.

December and July present contrasting weather experiences. In December, temperatures typically range from a chilly 2°C (35°F) to a mild 13°C (56°F), with an average of 8°C (46°F). The month is quite damp, receiving 110 mm (4.3 in) of precipitation over about 16 days, resulting in a high humidity level of 84%. Conversely, July offers a more pleasant climate with temperatures between 10°C (51°F) and 20°C (68°F), averaging 15°C (60°F). Precipitation decreases to 78 mm (3.1 in) across 14 days, and humidity slightly increases to 86%. This contrast highlights the difference between a typically cold and wet winter month and a warmer, albeit still somewhat humid, summer month. For a more detailed look at July weather, check out Greystones weather in July.

December and August present contrasting weather conditions. In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 13°C (56°F), with an average of around 8°C (46°F). The month sees approximately 110 mm (4.3 in) of precipitation over 16 days, coupled with a high humidity level of 84%. In contrast, August experiences milder temperatures, with a minimum of 10°C (51°F) and a maximum of 20°C (68°F), averaging 15°C (60°F). The month receives slightly less precipitation at 96 mm (3.8 in) over the same number of days, and the humidity remains similar at 85%. For more detailed insights, you can explore Greystones weather in August.

In comparing the weather between December and September, December tends to be much colder, with average temperatures ranging from a chilly 2°C (35°F) to a maximum of 13°C (56°F), whereas September is milder, featuring temperatures that range from a minimum of 7°C (45°F) to an average high of 20°C (68°F). Additionally, December experiences more precipitation, with 110 mm (4.3 in) over approximately 16 days, compared to September’s 82 mm (3.2 in) spread across 14 days. The humidity levels are slightly higher in December at 84%, while September holds a humidity level of 86%. For more details, you can visit Greystones weather in September.

December's weather tends to be cooler than October's, with average temperatures ranging from a low of 2°C (35°F) to a high of 13°C (56°F), compared to October's range of 5°C (41°F) to 18°C (64°F). Both months experience similar precipitation levels, with December receiving 110 mm (4.3 in) and October just slightly less at 101 mm (4.0 in), each spanning 16 days of rain. Humidity is slightly lower in December at 84%, whereas October is slightly higher at 87%. For more detailed information, you can check out Greystones weather in October.

In December, temperatures generally range from a minimum of 2°C (35°F) to a maximum of 13°C (56°F), with an average of 8°C (46°F). This month sees slightly lower temperatures compared to November, which boasts a minimum of 3°C (38°F) and a maximum of 15°C (59°F), averaging 9°C (49°F). Precipitation is also considerable, with December receiving 110 mm (4.3 in) of rain over 16 days, while November experiences a slightly higher rainfall of 127 mm (5.0 in) over 17 days. Humidity remains relatively high in both months, with December at 84% and November at 86%. For more detailed information on the weather during this period, you can check out Greystones weather in November.

Compare Greystones's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Greystones

As December unfolds in Greystones, it ushers in a distinctly cooler climate compared to the milder months prior. With an average temperature of 8°C (46°F), the chill is complemented by increased precipitation, marking this month as one of the wetter periods of the year with roughly 16 rainy days contributing to a total of 110 mm (4.3 inches) of rainfall. The high humidity, hovering around 84%, adds to the dampness, making it feel even chillier. This shift towards colder, wetter weather is a reminder of the approaching winter, offering a stark contrast against the temperate conditions of earlier months. For a deeper understanding of how Greystones' weather shapes throughout the year, visit Greystones Climate.